countermand vs bidding

countermand and bidding both are nouns.

Word	Noun	Adjective	Verb	Adverb
countermand	Yes	No	Yes	No
bidding	Yes	No	No	No

As nouns, bidding is a hypernym of countermand; that is, bidding is a word with a broader meaning than countermand:

Other hypernyms of countermand include bid, command, dictation.

countermand (noun)	bidding (noun)
a contrary command cancelling or reversing a previous command	a request to be present
	(bridge) the number of tricks a bridge player is willing to contract to make
	an authoritative direction or instruction to do something

countermand (verb)	bidding (verb)
cancel officially